It's not the case that "we only have the bug id". Launchpad knows very well what the bug summary is -- as you can tell by the fact that the e-mail notification contains the summary in the footer! I can't think of any sensible reason to include this information in the footer 100% of the time, and in the Subject only 99.9% of the time.
(Separately, Apport -- a prolific bug commenter -- sometimes makes comments with empty Subjects, which I confused with this bug. I've now reported that separately as bug 1495436.)
It's not the case that "we only have the bug id". Launchpad knows very well what the bug summary is -- as you can tell by the fact that the e-mail notification contains the summary in the footer! I can't think of any sensible reason to include this information in the footer 100% of the time, and in the Subject only 99.9% of the time.
Examples of this bug that I've received in the past year: bug 867424, bug 399765, bug 1023588, bug 867424, and bug 627195. I wouldn't call it Critical at all, just an annoyance.
(Separately, Apport -- a prolific bug commenter -- sometimes makes comments with empty Subjects, which I confused with this bug. I've now reported that separately as bug 1495436.)